Nov 2, 2013 6:00am PDT
replanted has to adjust to its new environment. that weakens the plants. it is called planting shock. it depends how big the shock is. when it goes into the ground weekend, the likelihood it will survive the shock is even lower. the ground is too tough, uneven, and full of rocks and roots. no easy job for the beginners. i evening, 150 saplings are left unplanted. evening, one hundred 50 saplings are left unplanted. the kitchen crew is waiting. all organic. here another four days after their good deed for the forest. [soft exotic flute music] ♪ captioning and audio description provided by the u.s. department of education. >> bokara: i'm bokara legendre. join me and my guests--scholars and scientists, spiritual teachers and philosophers-- as we explore the boundaries of religion and metaphysics, of science and spirituality. join me and some really fascinating people as we try to figure out what life's all about and how it can have meaning for each one of us.
Nov 1, 2013 2:00pm PDT
% of the earth's water is contained in the oceans. some forms of life flourish in this salty environment. but humans require an abundant supply of freshwater. less than 1% of all the earth's water is readily available for human consumption. in the semi-arid desert plains of the southwest united states, where rainfall averages just 2 1/2 centimeters per month, tom maddock studies this scarce resource. dr. maddock: the real problem that we have is that with increasing populations